.nav {
  position: fixed;
  top: 47px;
  left: 0;
  bottom: 0;
  width: 90px;
  background: #444;

  li {
    font-size: 14px;
    height: 36px;
    line-height: 36px;
    margin-bottom: 14px;
    text-align: center;
    color: #cacaca;
    cursor: pointer;

    &:hover {
      color: black;
      background: #dedbdb;
    }

  }
}

.main-page {
  margin-left: 100px;
}
